/* * Copyright (C) 2016 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <errno.h> #include <getopt.h> #include <stdio.h> #include <sys/socket.h> #include <sys/types.h> #include <unistd.h> #include <cutils/properties.h> #include <cutils/sockets.h> static constexpr char VERSION[] = "1.0"; static void show_usage() { fprintf(stderr, "usage: bugreportz [-h | -v]\n" " -h: to display this help message\n" " -v: to display the version\n" " or no arguments to generate a zipped bugreport\n"); } static void show_version() { fprintf(stderr, "%s\n", VERSION); } int main(int argc, char *argv[]) { if (argc > 1) { /* parse arguments */ int c; while ((c = getopt(argc, argv, "vh")) != -1) { switch (c) { case 'h': show_usage(); return EXIT_SUCCESS; case 'v': show_version(); return EXIT_SUCCESS; default: show_usage(); return EXIT_FAILURE; } } // passed an argument not starting with - if (optind > 1 || argv[optind] != nullptr) { show_usage(); return EXIT_FAILURE; } } // TODO: code below was copy-and-pasted from bugreport.cpp (except by the timeout value); // should be reused instead. // Start the dumpstatez service. property_set("ctl.start", "dumpstatez"); // Socket will not be available until service starts. int s; for (int i = 0; i < 20; i++) { s = socket_local_client("dumpstate", ANDROID_SOCKET_NAMESPACE_RESERVED, SOCK_STREAM); if (s >= 0) break; // Try again in 1 second. sleep(1); } if (s == -1) { printf("FAIL:Failed to connect to dumpstatez service: %s\n", strerror(errno)); return EXIT_SUCCESS; } // Set a timeout so that if nothing is read in 10 minutes, we'll stop // reading and quit. No timeout in dumpstate is longer than 60 seconds, // so this gives lots of leeway in case of unforeseen time outs. struct timeval tv; tv.tv_sec = 10 * 60; tv.tv_usec = 0; if (setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) == -1) { fprintf(stderr, "WARNING: Cannot set socket timeout: %s\n", strerror(errno)); } while (1) { char buffer[65536]; ssize_t bytes_read = TEMP_FAILURE_RETRY( read(s, buffer, sizeof(buffer))); if (bytes_read == 0) { break; } else if (bytes_read == -1) { // EAGAIN really means time out, so change the errno. if (errno == EAGAIN) { errno = ETIMEDOUT; } printf("FAIL:Bugreport read terminated abnormally (%s)\n", strerror(errno)); break; } ssize_t bytes_to_send = bytes_read; ssize_t bytes_written; do { bytes_written = TEMP_FAILURE_RETRY( write(STDOUT_FILENO, buffer + bytes_read - bytes_to_send, bytes_to_send)); if (bytes_written == -1) { fprintf(stderr, "Failed to write data to stdout: read %zd, trying to send %zd (%s)\n", bytes_read, bytes_to_send, strerror(errno)); break; } bytes_to_send -= bytes_written; } while (bytes_written != 0 && bytes_to_send > 0); } if (close(s) == -1) { fprintf(stderr, "WARNING: error closing socket: %s\n", strerror(errno)); } return EXIT_SUCCESS; }